Textron JACOBSEN R-311 69166, Technical/Repair Manual

Page: 38 / 402

ENGINE
4203781 First Edition 3-9
3
Figure 3-12
4. Remove the muffler clamp and hardware (2) from the
exhaust pipe (1).
5. Remove four nuts (4), isolation mounts (5), screws
(7), and eight flat washers (3). Remove the muffler
(8) from the two muffler brackets (6) and exhaust
pipe (1).
Figure 3-13
6. Remove the four bolts (9) securing the exhaust pipe
(11) to the exhaust manifold (10).
7. Inspect the exhaust system for cracks, holes, and
distortion. Replace exhaust gaskets and exhaust
clamps.
Installation Notes
• Install the muffler in the reverse order of removal.
• Install new gaskets during installation.
Exhaust Manifold
Removal and Installation
See Figure 3-14.
!
CAUTION
1. Park the mower safely. (See “Park Mower Safely” on
page 1-6.)
2. Allow the engine to cool completely.
3. Raise the hood.
4. Remove the muffler. (See “Muffler” on page 3-8.)
Figure 3-14
5. Remove eight nuts (1) and lock washers (2).
6. Tilt exhaust manifold (3) upward and remove from
engine.
Installation Notes
• Clean the gasket surfaces.
• Install the exhaust manifold by reversing the order of
removal.
• Use new gaskets during installation.
TN1996
1
2
3
5
4
7
8
6
TN2010
9
10
11
Do not attempt to service the exhaust system
when the engine is hot. Serious personal injury
can occur.
3
2
TN2014
1